Robot collision protection device with buffering and energy absorbing functions

Abstract

The utility model discloses a robot collision protection device with buffering and energy absorbing functions, which relates to the technical field of robot collision protection devices and comprises a box body, and buffering plates are slidably connected to the front side and the rear side of the upper portion of the box body. According to the robot collision protection device with the buffering and energy absorbing functions, the supporting rod, the sliding block, the first connecting rod, the second connecting rod, the first compression spring, the air cylinder, the piston, the one-way air inlet valve, the one-way air outlet valve, the exhaust spring pipe, the connecting pipe and the silencer are matched; the supporting plate presses down the driving connecting rod to push the sliding block to slide reversely along the supporting rod, so that the first compression spring is compressed, and collision impact force is absorbed through elastic deformation. Meanwhile, the sliding block is in linkage with the piston to reciprocate in the air cylinder, gas flow is controlled through the one-way valve, mechanical energy is converted into gas pressure energy, the gas pressure energy is exhausted through the exhaust spring pipe and the silencer, a mechanical-gas double-channel energy dissipation mechanism is formed, and the energy absorption efficiency is remarkably improved.

Description

A robot collision protection device with buffering and energy absorption function Technical Field

[0001] This utility model relates to the technical field of robot collision protection devices, and in particular to a robot collision protection device with buffer energy absorption function. Background Technology

[0002] A robot collision protection device with buffering and energy absorption function is a device used to protect robots and their surrounding environment from collision damage. It reduces the impact force of collisions through buffering and energy absorption mechanisms, thereby reducing the risk of equipment damage and personnel injury.

[0003] Chinese patent document CN222200620U discloses a conveyor collision protection device for industrial robots, belonging to the field of industrial robot technology. It includes a connecting cylinder and a telescopic rod. The connecting cylinder has an internal placement groove containing a damper, a buffer spring, and a circular plate. The telescopic rod is slidably installed inside the connecting cylinder, and an mounting ring is slidably installed on its outer side. A connecting ring is fixedly installed at the bottom of the connecting cylinder, and the connecting ring has an internal annular groove. The mounting ring is movably installed inside the annular groove, allowing for quick installation of the telescopic rod and connecting cylinder. This facilitates disassembly of the telescopic rod, removal of the buffer spring, and replacement and maintenance of its parts. By compressing the buffer spring through the telescopic rod and the circular plate, the impact force when the product lands can be reduced, thus providing collision protection for the product and preventing surface deformation.

[0004] The existing technology has the following problems:

[0005] Although the above-mentioned utility model facilitates the disassembly of the telescopic rod and the buffer spring for maintenance, the buffer spring alone results in limited energy absorption efficiency, which cannot effectively cope with high-energy collisions. Furthermore, the impact receiving surface is only a single layer, causing the collision energy to be concentrated on the circular plate, which can easily cause structural damage. Summary of the Invention

[0006] This invention provides a robot collision protection device with buffering and energy absorption function to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A robot collision protection device with buffer energy absorption function includes a box body, with buffer plates slidably connected to the front and rear sides of the upper part of the box body, and a support plate fixedly connected to the upper surface of the two buffer plates. An energy absorption mechanism is movably connected to the inner cavity of the box body.

[0009] The energy-absorbing mechanism includes a support rod, which is fixedly connected to the lower part of the inner cavity of the box. Two sliders, distributed on the left and right sides, are slidably connected to the outer periphery of the support rod. The upper surface of the slider on the right side is rotatably connected to a connecting rod one, and the upper surface of the slider on the left side is rotatably connected to a connecting rod two. The upper part of the connecting rod one is rotatably connected to the left side of the lower surface of the support plate, and the upper part of the connecting rod two is rotatably connected to the right side of the lower surface of the support plate. The connecting rod two is slidably connected inside the connecting rod one. Compression spring one is fixedly connected to the opposite side of each of the two sliders, and the compression spring one is movably sleeved on the outer periphery of the support rod.

[0010] Preferably, a compression spring is fixedly connected to one side of each of the two sliders, and a sliding plate is fixedly connected to one side of each of the two compression springs. The sliding plate is slidably connected to the outer periphery of the support rod, and a conversion component is movably connected to both the front and rear sides of the slider.

[0011] Preferably, the conversion assembly includes pistons, and multiple pistons are rotatably connected to the front and rear sides of the slider and the inner cavity of the housing, respectively. Two pistons located between the slider and the housing are slidably connected to cylinders on their outer peripheries. A one-way exhaust valve is fixedly connected to the upper part of the cylinder, and an exhaust spring tube is fixedly connected to the output end of the one-way exhaust valve. A one-way intake valve is fixedly connected to the lower part of the cylinder.

[0012] Preferably, the front and rear sides of the housing are fixedly connected to connecting pipes, and the output ends of the two exhaust spring pipes distributed on the left and right sides are respectively fixedly connected to the left and right sides of the inner cavity of the connecting pipes.

[0013] Preferably, a buffer mechanism is fixedly connected to the upper part of the support plate. The buffer mechanism includes a buffer cover, which is fixedly connected to the outer periphery of the support plate. A honeycomb buffer pad is fixedly connected to the upper part of the inner cavity of the buffer cover. A rubber buffer pad is fixedly connected to the lower surface of the honeycomb buffer pad and is fixedly connected to the upper surface of the support plate.

[0014] Preferably, the material used for the buffer cover is polycarbonate, the material used for the honeycomb buffer pad is aluminum honeycomb core material, and the material used for the rubber buffer pad is natural rubber.

[0015] Preferably, a silencer is fixedly connected to the opposite side of each of the two connecting pipes, and the opposite side of the two silencers is fixedly connected to the middle of the front and rear sides of the housing, respectively.

[0016] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0017] 1. This utility model provides a robot collision protection device with buffering and energy absorption function. Through the cooperation of a support rod, slider, connecting rod one, connecting rod two, compression spring one, cylinder, piston, one-way inlet valve, one-way outlet valve, exhaust spring tube, connecting pipe, and muffler, when the robot is subjected to a collision, the support plate presses down, driving the connecting rod to push the slider to slide in the opposite direction along the support rod, compressing the compression spring one, which absorbs the impact force through elastic deformation. Simultaneously, the slider, in conjunction with the piston, reciprocates within the cylinder. The one-way valve controls the gas flow, converting mechanical energy into gas pressure energy, which is then discharged through the exhaust spring tube and muffler, forming a mechanical-gas dual-channel energy dissipation mechanism, significantly improving energy absorption efficiency.

[0018] 2. This utility model provides a robot collision protection device with buffer energy absorption function. Through the combination of a buffer shield, a honeycomb buffer pad, a rubber buffer pad, a support plate, and a buffer plate, the outer layer of the device is wrapped with a polycarbonate buffer shield, whose high strength characteristics can withstand the initial impact. The inner layer is set with an aluminum honeycomb core and a natural rubber composite buffer pad. Utilizing the porous dispersion effect of the honeycomb structure and the elastic recovery characteristics of rubber, the impact force is gradually attenuated. This achieves layered absorption of collision energy, allowing it to be absorbed in multiple stages such as material deformation and gas compression, avoiding structural damage caused by energy concentration and effectively protecting the robot's safety. Attached Figure Description

[0019] Figure 1 is a three-dimensional structural diagram of this utility model;

[0020] Figure 2 is a schematic cross-sectional view of the box structure of this utility model;

[0021] Figure 3 is a schematic diagram of the energy absorption mechanism of this utility model;

[0022] Figure 4 is a schematic diagram of the conversion component structure of this utility model;

[0023] Figure 5 is a schematic diagram of the buffer mechanism structure of this utility model.

[0024] In the diagram: 1. Housing; 2. Buffer mechanism; 21. Buffer cover; 22. Honeycomb buffer pad; 23. Rubber buffer pad; 3. Support plate; 4. Buffer plate; 5. Energy absorption mechanism; 51. Support rod; 52. Slider; 53. Connecting rod one; 54. Connecting rod two; 55. Compression spring one; 56. Conversion component; 561. Cylinder; 562. Piston; 563. One-way intake valve; 564. One-way exhaust valve; 565. Exhaust spring tube; 566. Connecting pipe; 567. Muffler; 57. Compression spring two; 58. Slide plate. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] As shown in Figures 1-5, a robot collision protection device with buffer energy absorption function includes a box 1. Buffer plates 4 are slidably connected to the front and rear sides of the upper part of the box 1. A support plate 3 is fixedly connected to the upper surface of the two buffer plates 4. An energy absorption mechanism 5 is movably connected to the inner cavity of the box 1.

[0027] The energy absorption mechanism 5 includes a support rod 51, which is fixedly connected to the lower part of the inner cavity of the housing 1. Two sliders 52, distributed on the left and right sides, are slidably connected to the outer periphery of the support rod 51. A connecting rod 53 is rotatably connected to the upper surface of the slider 52 on the right side, and a connecting rod 54 is rotatably connected to the upper surface of the slider 52 on the left side. The upper part of the connecting rod 53 is rotatably connected to the left side of the lower surface of the support plate 3, and the upper part of the connecting rod 54 is rotatably connected to the right side of the lower surface of the support plate 3. The connecting rod 54 is slidably connected inside the connecting rod 53. Compression springs 55 are fixedly connected to opposite sides of the two sliders 52, and the compression springs 55 are movably sleeved on the outer periphery of the support rod 51.

[0028] It should be noted that the housing 1, as the main load-bearing component of the device, provides installation space for the internal energy-absorbing mechanism 5 and the buffer mechanism 2. Simultaneously, through a sliding connection with the buffer plate 4, it initially guides the collision force transmission path. The buffer plate 4 indirectly bears the impact force, absorbing the impact force received by the support plate 3 through deformation. The support plate 3, acting as a connecting bridge between the buffer mechanism 2 and the energy-absorbing mechanism 5, converts the impact force into deformation or displacement of the internal structure.

[0029] Support rod 51 provides a sliding track for slider 52. Slider 52 compresses the spring through displacement, achieving elastic energy absorption. Link 1 53 and Link 2 54 convert the vertical displacement of support plate 3 into the horizontal displacement of slider 52, driving energy absorption mechanism 5 to work. When the robot is hit by a collision, support plate 3 will be subjected to downward pressure. At this time, link 1 53 and Link 2 54 will push the two sliders 52 to slide in opposite directions along support rod 51, compressing spring 1 55, thereby absorbing some of the collision energy and playing a preliminary role in buffering and absorbing energy.

[0030] As shown in Figure 3, compression springs 57 are fixedly connected to the opposite sides of the two sliders 52, and slide plates 58 are fixedly connected to the opposite sides of the two compression springs 57. The slide plates 58 are slidably connected to the outer periphery of the support rod 51, and conversion components 56 are movably connected to the front and rear sides of the sliders 52.

[0031] It should be noted that the compression spring 57, in conjunction with the slide plate 58, prevents direct collisions between the sliders 52. Meanwhile, the conversion component 56, as the key to further energy conversion, provides the foundation for subsequent energy conversion through its connection with the slider 52.

[0032] As shown in Figure 4, the conversion component 56 includes pistons 562. Multiple pistons 562 are rotatably connected to the front and rear sides of the slider 52 and the inner cavity of the housing 1, respectively. Two pistons 562 located between the slider 52 and the housing 1 are slidably connected to cylinders 561 on their outer periphery. A one-way exhaust valve 564 is fixedly connected to the upper part of the cylinder 561. An exhaust spring tube 565 is fixedly connected to the output end of the one-way exhaust valve 564. A one-way intake valve 563 is fixedly connected to the lower part of the cylinder 561.

[0033] It should be noted that when slider 52 moves, it drives piston 562, which is connected to it, to slide within cylinder 561, thereby changing the air pressure within cylinder 561. One-way intake valve 563 opens when piston 562 moves outward, allowing outside air to enter cylinder 561; one-way exhaust valve 564 opens when piston 562 moves inward, expelling gas from cylinder 561. This gas is then further processed through exhaust spring tube 565, thus converting collision energy into gas pressure energy.

[0034] As shown in Figure 3, the front and rear sides of the housing 1 are fixedly connected to the connecting pipes 566, and the output ends of the two exhaust spring pipes 565 distributed on the left and right sides are fixedly connected to the left and right sides of the inner cavity of the connecting pipes 566 respectively.

[0035] It should be noted that the exhaust spring pipe 565 delivers the gas discharged from the cylinder 561 to the connecting pipe 566. The connecting pipe 566 serves as a channel for gas flow, playing a role in converging and guiding the gas, so that the gas can flow in an orderly manner, preparing for subsequent noise reduction treatment, etc.

[0036] As shown in Figure 5, a buffer mechanism 2 is fixedly connected to the upper part of the support plate 3. The buffer mechanism 2 includes a buffer cover 21, which is fixedly connected to the outer periphery of the support plate 3. A honeycomb buffer pad 22 is fixedly connected to the upper part of the inner cavity of the buffer cover 21. A rubber buffer pad 23 is fixedly connected to the lower surface of the honeycomb buffer pad 22. The rubber buffer pad 23 is fixedly connected to the upper surface of the support plate 3.

[0037] It should be noted that the buffer cover 21 encloses and protects the internal structure to prevent foreign objects from entering. As the first layer of protection, the buffer cover 21 directly bears the impact of the collision. The honeycomb buffer pad 22 inside it uses the porous structure of aluminum honeycomb core material to disperse and absorb the collision energy. The rubber buffer pad 23 further provides cushioning. Its natural rubber material has good elasticity and resilience, which can effectively reduce the impact of the collision on the robot on the support plate 3.

[0038] As shown in Figure 5, the material used for the buffer cover 21 is polycarbonate, the material used for the honeycomb buffer pad 22 is aluminum honeycomb core material, and the material used for the rubber buffer pad 23 is natural rubber.

[0039] It should be noted that the buffer cover 21 is made of polycarbonate material, which has strong impact resistance and provides external protection for the robot. The honeycomb buffer pad 22 uses aluminum honeycomb core material, whose lightweight and high-strength characteristics make the buffering effect significant and suitable for high-energy collision scenarios. The rubber buffer pad 23 uses natural rubber, which provides good elasticity and resilience, ensuring long-term effective buffering.

[0040] As shown in Figure 2, silencers 567 are fixedly connected to opposite sides of the two connecting pipes 566, and the opposite sides of the two silencers 567 are fixedly connected to the middle of the front and rear sides of the housing 1, respectively.

[0041] It should be noted that the muffler 567 is used to reduce the noise generated when the exhaust spring tube 565 releases gas.

[0042] The working principle of this invention is as follows: When the robot is impacted, the impact force first acts on the buffer shield 21, which deforms to absorb part of the impact force. Simultaneously, it transfers the remaining impact force to the honeycomb buffer pad 22 and the rubber buffer pad 23, further absorbing energy and reducing the impact on the support plate 3. The support plate 3 experiences downward pressure, causing connecting rods 53 and 54 to move, pushing two sliders 52 to slide in opposite directions along the support rod 51. The compression spring 55 is compressed, absorbing the impact energy. Simultaneously, the movement of sliders 52 causes piston 562 to slide within cylinder 561, changing the air pressure inside cylinder 561. Gas is then allowed to enter and exit through one-way inlet valve 563 and one-way outlet valve 564, converting the impact energy into gas pressure energy. The gas is then transported through exhaust spring tube 565 to connecting pipe 566 and finally discharged through muffler 567, reducing noise. The entire process achieves multi-stage buffering and energy conversion, effectively reducing the impact of collisions on the robot and protecting its safety.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A robot collision protection device with buffering and energy absorption function, comprising a housing (1), characterized in that: Both the front and rear sides of the upper part of the box (1) are slidably connected to buffer plates (4), and the upper surfaces of the two buffer plates (4) are fixedly connected to a support plate (3). An energy-absorbing mechanism (5) is movably connected to the inner cavity of the box (1). The energy-absorbing mechanism (5) includes a support rod (51), which is fixedly connected to the lower part of the inner cavity of the box (1). Two sliders (52) distributed on the left and right sides are slidably connected to the outer periphery of the support rod (51). A connecting rod is rotatably connected to the upper surface of the slider (52) on the right side. (53) The upper surface of the slider (52) on the left is rotatably connected to the second connecting rod (54). The upper part of the first connecting rod (53) is rotatably connected to the left side of the lower surface of the support plate (3). The upper part of the second connecting rod (54) is rotatably connected to the right side of the lower surface of the support plate (3). The second connecting rod (54) is slidably connected inside the first connecting rod (53). Compression springs (55) are fixedly connected to the opposite sides of the two sliders (52). The compression springs (55) are movably sleeved on the outer periphery of the support rod (51).

2. The robot collision protection device with buffer energy absorption function according to claim 1, characterized in that: Compression springs (57) are fixedly connected to each of the two sliders (52) on opposite sides, and slide plates (58) are fixedly connected to each of the two compression springs (57) on opposite sides. The slide plates (58) are slidably connected to the outer periphery of the support rod (51), and conversion components (56) are movably connected to both the front and rear sides of the sliders (52).

3. The robot collision protection device with buffer energy absorption function according to claim 2, characterized in that: The conversion assembly (56) includes pistons (562), and multiple pistons (562) are rotatably connected to the front and rear sides of the slider (52) and the inner cavity of the housing (1). Two pistons (562) located between the slider (52) and the housing (1) are slidably connected to cylinders (561) on their outer periphery. A one-way exhaust valve (564) is fixedly connected to the upper part of the cylinder (561), and an exhaust spring tube (565) is fixedly connected to the output end of the one-way exhaust valve (564). A one-way intake valve (563) is fixedly connected to the lower part of the cylinder (561).

4. A robot collision protection device with buffering and energy absorption function according to claim 3, characterized in that: The front and rear sides of the housing (1) are fixedly connected to connecting pipes (566), and the output ends of the two exhaust spring pipes (565) distributed on the left and right sides are respectively fixedly connected to the left and right sides of the inner cavity of the connecting pipe (566).

5. A robot collision protection device with buffering and energy absorption function according to claim 1, characterized in that: A buffer mechanism (2) is fixedly connected to the upper part of the support plate (3). The buffer mechanism (2) includes a buffer cover (21). The buffer cover (21) is fixedly connected to the outer periphery of the support plate (3). A honeycomb buffer pad (22) is fixedly connected to the upper part of the inner cavity of the buffer cover (21). A rubber buffer pad (23) is fixedly connected to the lower surface of the honeycomb buffer pad (22). The rubber buffer pad (23) is fixedly connected to the upper surface of the support plate (3).

6. A robot collision protection device with buffering and energy absorption function according to claim 5, characterized in that: The material used for the buffer cover (21) is polycarbonate, the material used for the honeycomb buffer pad (22) is aluminum honeycomb core material, and the material used for the rubber buffer pad (23) is natural rubber.

7. A robot collision protection device with buffering and energy absorption function according to claim 4, characterized in that: A silencer (567) is fixedly connected to the opposite side of each of the two connecting pipes (566), and the opposite sides of the two silencers (567) are respectively fixedly connected to the middle of the front and rear sides of the housing (1).

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